Driving mechanism.



2 Sheets-Sheet l.

Patented May 27, 1902.

0.- WIBLITZHAUSER.

DRIVING MECHANISM.

(Application filed Apr.

,m ii

(No Model.)

N NEH fun finesse/a Patented May 27, I902.

- 0. WIBLITZHAUSER.

DRIVING MECHANISM.

(Application filed Apr. 17, 1901.) (No Model.) 2 Sheets$heet 2,

WM 2711], v 771; 6'.

UNITED STATES "PATENT @FFICE.

OTTO \VIBLITZIIAUSER, OF BROOKLYN, NEW YORK.

DRIVING MECHANISM.

SPECIFICATION forming part of Letters Patent N 0. 700,868, dated May 27, 1902.

. Application filed April 1'7 1901. Serial No. 56,199. (No model.) I

To (all whom, it nutty 00771067771.

Be it known that I, OTTO WIBLITZHAUSER, a citizen of the United States, and aresident of Brooklyn, in-the county of Kings and State of New York, have invented certain new and useful Improvements in Driving Mechanisms for Machines, of which the following is a specification.

The object of this invention relates to driving mechanisms having a sliding key in a sunk key-seatin the shaft to engage into the key-seat provided in the hub of the drivingwheel of the machine and having a treadle with a spring and carrying a wedge-slide for disengaging the key from the wheel. By the momentum of the shaft the key is frequently passed by the key-seat in the hub and without entering sufficiently, and thereby wearing them gradually useless.

Another object of this invention is to avoid the clutch from Wearing the hub by a construction of the clutch with a dwell during the momentum and holding the key from entering a moment later to efiect asuccessful entering of the key into the seat.

Figure 1 represents a side elevation of the clutch and part of its treadle in a condition of being disconnected from the driving, power, or belt wheel and being shown constructed according to my invention. Fig. 2 is a vertical lateral section of the same, the line of section a Z) being shown in Figs. 1 and a. Fig. 3 is a vertical longitudinal section of thesame. Fig. 4 is a similar section of the same, but the clutch shown in position onthe shaft being connected with the driving-wheel of the machine. Fig. 5 is a face view of the hub of the said wheel, showing its key-seats in the hub and also the sunk key-seat in the shaft. Fig. 6 is a vertical lateral section through the groove in the clutch in which the head of the key travels while engaged with the wheel, the line 0 cl being shown in Fig. 4. Fig. 7 is a vertical longitudinal section of the clutch, showing its key just before disengaging from the wheel in full lines and showing the same having disengaged from it in dotted lines. Fig. 8 represents a front view of a powerhammer furnished with a clutch according to my invention.

The letter A of reference indicates the horizontal driving-shaft of the machine, on which the clutch is employed. Said shaft is guided in two bearings in the frame and extends with both ends beyond the frame. Upon the shaft, extending on the right-hand end, is employed the driving-wheel 13, connected by said clutch with the shaft A. Close to" the frame said shaft has a large collar 0, and a secondary collar D is provided on the end of the same close beyond the hub of the wheel 13. Outward from the frame, beyond the collar 0, is provided over the shaft a segment of a ringplate E, secured stationary with the frame and parallel and concentrically with the hub of thewheel B, and between said plate E and the hub of the wheel B is provided a clutchcollar F, fitted to pass over the shaft A and its key. Said shaft has a longitudinal sunk key-seat t'from the collar 0 to a suitable distance beyond the junction of the hub with the collar F, and in said key-seat is provided a sliding key H, having a-shank projecting into the collar F and the hub of the wheel B, which both are made with a keyway for said shank of the .key H and which has a head It, overlapping said keyway and preventing the head to enter the keyway, as shown in Fig. 4. At the same end of the head of the key is provided a longitudinal hole in said key, in which is provided a spiral spring n, bearing with its outer end against the collar 0, in which it is seated in asuitable opening, and by this means said key is pressed outward against the hub of the wheel B to enter readily in passing into the cavity or keyway for its shank. The ring-plate E has several studs G between it and the frame of the machine, through which are employed suitable bolts e, passing also through the frame and furnished on their inner ends with screw-nuts to secure said plate very firmly to the frame. Said plate E overlaps the keyhead by its side toward the frame of the machine, which is made of a reduced radius, as shown in Figs. at and 2. Said plate E circumscribes nearly two-thirds of a circle, and below it is provided a segment-plate I, which circumscribes less than one-third of the same circle, and said plate is secured upon the top part of a treadle-rod J, by which said plate I is held down, as shown in Fig. 2, while the key H is engaged with the hub of the wheel 13 and its motion is imparted to the shaft A,

as shown in Figs. 2, 6, and 7. Said treadlerod .I is connected with an arm h of the treadle-arbor Z, and said arbor has a treadlelever m, which is operated by the foot of the operator. The treadle-rod J passes through a guide-plate O, secured to the frame of the machine, and upon said guide-plate O is resting a spiral spring P, held down by a collar Q over said spring and secured upon the rod J. The motion of the wheel B is indicated by the arrow shown in Fig. 2. \Vhile the key H is engaged in the key-seat of the hub of the wheel B and held therein by the spring n the head of the key passes close upon the face of the collar F, and during such time the treadle is held down by the foot of the operator, as shown in Figs. 2 and 4:.

The segment-plate I is so formed that one end will abut and fit snugly against one end of the segmental plate E when the said plate I is raised to its highest position. The other end of the said plate I is beveled or formed" with an inclined face, which permits one end of the segmental plate E to descend and come sufficiently close to the same to prevent the passage of the head of the key H between the end of the segmentE and the beveled end of the segment I. The rod J is formed in two sections. The upper section,carrying the segment I, is pivoted to the lower section, which has a vertical movement through the guideplate 0. A spring 00, carried by the upper section of the rod J, normally holdsthe upper end of the said rod and the plate I away from the face of the collarF bya yielding pressure.

The upper section of the rod J carries a roller- 8, which is adapted to engage a wedge block or projection t upon the adjacent frame of the machine. By this structure when the rod J is permitted to rise under the action of the spring P the upper end of the rod, together with the segment I, is forced against the face of the collar F by the said wedge t. WVhile the segment I is held away from the collar F the key H is undisturbed and permitted to engage one of the recesses in the hub of the wheel B, so that the shaft A may be made to turn with the said wheel. Whenever the segment I is forced against the face of the collar F and is raised to meet the segment E, the inclined beveled end of the said segment I is brought into the path of the head 70 of the key H, which head is beveled to correspond with the bevel on the end of the segment I, so that the said head will ride upon the incline of the segment I, and the key II will be thereby withdrawn from the notch or socket in the hub of the wheel B. It will thereby be seen that the key II will be automatically withdrawn to disconnect the wheel B from the shaft A by releasing the foot-treadle m. In order to permit the wheel B to continue its rotation under the momentum which it has received from the shaft A and yet to prevent the key H from again coming in contact with the recesses of the wheel-hub, the space between the end of the segment E and the beveled end of the segment I is closed by a springplate S, the said plate bridging the space and producing a continuation of the path over which the head of the key travels on the seginents E and I. This plate S is spring-actuated, so that the head of the key may force its Way up past the same when riding up upon the inclined end of the segment I. When it is desired to connect the wheel B with the shaft A again, it is merely necessary to de- :press the segment I through the agency of the foot-lever m and the rod J, the pin thereby being free to drop into one of the sockets in the wheel Bunder the action of the spring carried by said pin, the head of the said pin again engaging the face of the collar F and being carried around upon the inner side of the said segment E and to one side of the segment I; From the description it will be seen that the Wheel B can be quickly connected and disconnected from the shaft A, so as to actuate and cease to actuate the same by operating the lever m.

What I claim, and desire to secure by Letters Patent, is-

In mechanism of the class described,a driving-shaft provided with a spring-key, a drivingwheel having key-seat cavities formed therein for the reception of the aforesaid key, a clutch-collar rabbeted to form a keyway, a stationary segment-plate secured to the frame of the machine, a second segment-plate secured to the treadle, joined to the stationary segment at one end, and provided with an opening at the junction of the opposite ends for the passage of the key, the outlet of said passage having means for covering the same, substantially as set forth.

Signed at Brooklyn, in the county of Kings and State of New York, this 13th day of April, A. D. 1901.

OTTO VVIBLITZHAUSER. [L. s.]

Vitnesses:

FRED. L. H. MALLET,

REINHOLD BoEKLEN.

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